Iran has formally withdrawn from a memorandum of understanding signed with the United States, accusing Washington of repeatedly violating the agreement. The Iranian Foreign Ministry stated that Tehran is no longer bound by any part of the deal reached last month to halt hostilities. The move follows renewed U.S. naval blockades on Iranian ports, which Tehran claims broke the agreement entirely.

According to Iranian officials, the United States reimposed the blockade early Wednesday, citing Iranian attacks on ships passing through the Strait of Hormuz. In response, Iran announced it would assume full control of the strategic waterway during wartime, a shift from the usual shared control with Oman. Deputy Foreign Minister Kazem Gharibabadi said Iran would establish complete sovereignty over the strait regardless of the cost and would not seek further negotiations with Washington.

The renewed tensions have cast further doubt on the interim truce aimed at ending the conflict, as new attacks on U.S. forces in various countries were reported following the blockade.